CN104527305A - Method and product for achieving color change pattern effect on 3D curved surface - Google Patents
Method and product for achieving color change pattern effect on 3D curved surface Download PDFInfo
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- CN104527305A CN104527305A CN201410784830.8A CN201410784830A CN104527305A CN 104527305 A CN104527305 A CN 104527305A CN 201410784830 A CN201410784830 A CN 201410784830A CN 104527305 A CN104527305 A CN 104527305A
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Abstract
The invention provides a method and a product for achieving a color change pattern effect on a 3D curved surface. The method comprises the following steps: printing patterns on a flake base material by adopting UV photosensitive ink; performing hot press molding on the printed base material, and punching to obtain a 3D curved surface shape; and putting the molded base material into a mold for performing embedded injection molding, adhering a cladding material on the base material, thereby obtaining the 3D product with the color change pattern effect. The method disclosed by the invention is realized by virtue of the principle that the UV photosensitive ink is subjected to color developing or color changing under sunlight or ultraviolet light, the UV photosensitive ink is printed on planar sheets, the sheets are subjected to thermal forming, the appearance shape of the product is punched, the sheets are arranged in the mold for performing in-mold injection molding, and the 3D product coated with light-sensitive color change patterns on the outer surface is obtained. The 3D product with the light-sensitive color change patterns can appear or show different colors under the sunlight or ultraviolet light, so that the product is interesting.
Description
Technical field
The present invention relates to color-shifting images technology, particularly a kind of method and product realizing color-shifting images effect on 3D curved surface.
Background technology
The electronic product casing occurred in the market usually adopts simple printed patterns or forms embossment to realize the decoration of case surface, along with growth in the living standard, people are when choosing electronic product, what pay close attention to is not only function and the quality of electronic product, has also become to the individual demand of electronic product the main cause that people choose electronic product.This general pattern or the fixing dullness of embossment color color, playability, interest are poor.
Summary of the invention
Based on this, for the problem of general pattern playability, interesting difference on above-mentioned 3D product, the present invention proposes a kind of on 3D curved surface, realize color-shifting images effect method and product.
Its technical scheme is as follows:
3D curved surface realizes a method for color-shifting images effect, comprises the steps:
Adopt UV photosensitive-ink printed patterns on flat substrates;
The base material printed is carried out hot-forming, Punching Technology and go out 3D curve form;
Base material after shaping is put into mould and carries out embedding injection moulding, base material bonds cladding material.
The present invention adopts UV photosensitive-ink to develop the color under sunshine or ultraviolet light or the principle of variable color realizes, UV photosensitive-ink is printed on the sheet material of plane, again sheet material is carried out thermoforming, stamping-out makes the face shaping of product, sheet material is inserted mould to carry out in-mould injection and obtain the 3D product that outer surface is enclosed with sensitization discoloration pattern, this 3D product with sensitization discoloration pattern can manifest or changes colour under sunshine or under ultraviolet light, makes product become interesting.
Below its further technical scheme is described:
Further, the mode of printing of employing is silk-screen or offset printing.The layer of ink of employing silk-screen is thick, precision is low, coining is little, and offset printing layer of ink is thin, printing figure message reproduction effects is good.
Further, this printed patterns can develop the color or/and variable color under sunshine or UV-irradiation.Utilize sensitization discoloration material can produce color change after sunshine/UV-irradiation, and the principle of color originally can be recovered after losing sunshine/ultraviolet light, realize printed patterns variable color and pattern displaying.
Further, described printed patterns has at least one deck.Can print multilayer sensitization discoloration pattern, wherein one deck can be with color, and other layers are not with color; Or wherein one deck is not with color, other layer band colors; Or some of them layer band color, some other layer is not with color.Thus the color that change display is different under sunshine or UV-irradiation.
Further, the fusing point of described cladding material is not higher than the fusing point of base material.If the fusion temperature of cladding material is too low, just cannot melt substrate surface, bonding is therebetween then firm not.But or fusion temperature is too high, base material will softening transform, and time serious, cladding material can penetrate base material, cause component processing failure.Therefore, the bonding that the material guarantee of coupling is good is selected.
Further, before being injected into by cladding material on base material, first preheating is carried out to base material, make substrate surface temperature close to the fusing point of cladding material.Such substrate surface temperature that can make close to the fusing point of cladding material, thus obtains optimum adhesion intensity, make cladding material more easily and base material combine.
Further, described cladding material is PC material and ABS material, and described base material is PC material.These materials are common, and easily PC material and ABS material injection moulding covered on PC material.
In addition, the present invention also proposes a kind of product realizing color-shifting images effect on 3D curved surface, and it is that to utilize the above-mentioned method realizing color-shifting images effect on 3D curved surface to process the 3D product obtained be electronic product casing or electronic product sheath.The printing of sensitization discoloration pattern is worked on electronic product casing or electronic product sheath, increases aesthetic property and the interest of product.
The present invention has following outstanding beneficial effect:
1, by printing sensitization discoloration pattern on product, the playability of product, interesting experience effect can be improved.
2, relative to other color dullnesses not variational product of tool, the competitiveness being printed with sensitization discoloration pattern product can be improved.
Accompanying drawing explanation
Fig. 1 is the step schematic block diagram of the method realizing color-shifting images effect in the embodiment of the present invention on 3D curved surface;
Fig. 2 is base materials employed structural representation in the method realizing color-shifting images effect in the embodiment of the present invention on 3D curved surface;
Fig. 3 is the structural representation in the method realizing color-shifting images effect in the embodiment of the present invention on 3D curved surface after printing on substrates pattern;
Fig. 4 is by the structural representation after the base material hot pressing punching molding that prints in the method realizing color-shifting images effect in the embodiment of the present invention on 3D curved surface;
Fig. 5 is the structural representation in the method realizing color-shifting images effect in the embodiment of the present invention on 3D curved surface on base material after injection moulding cladding material.
Description of reference numerals: 100-base material, 200-sensitization discoloration patterned layer, 210-sensitization discoloration pattern, 300-cladding material.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail.
Present invention utilizes sensitization discoloration material and can produce color change after sunshine/UV-irradiation, and the principle of color originally can be recovered after losing sunshine/ultraviolet light, propose a kind of method realizing color-shifting images effect on 3D curved surface, as shown in Figure 1, comprise the steps:
S110, employing UV photosensitive-ink print sensitization discoloration pattern 210 on flat substrates 100, namely on base material 100, form sensitization discoloration patterned layer 200.Such as, as shown in Figure 2 to Figure 3, can on flat pattern-free sheet material, by some five-pointed star shapes in the printing of UV photosensitive-ink, these five-pointed stars can be coloured or colourless;
S120, the base material 100 printed carried out hot-forming, Punching Technology and go out 3D curve form.As shown in Figure 3 to Figure 4, the sheet material of five-pointed star pattern of sensitization discoloration U-shaped can be die-cut into by being printed with;
S130, the base material 100 after shaping is put into mould carry out embedding injection moulding, base material 100 bonds cladding material 300, thus obtains the 3D product with color-shifting images effect.As shown in Fig. 4 to Fig. 5, on the U-shaped sheet material being printed with five-pointed star pattern, injection moulding one deck is similarly the cladding material of U-shaped, forms that have can the 3D product of five-pointed star pattern of sensitization discoloration.
Particularly, in step s 110, can print at least one deck sensitization discoloration pattern 210 on base material 100, the printed patterns of some of them layer can be colored pattern or/and not colored pattern, and this printed patterns can develop the color or/and variable color under sunshine or UV-irradiation.Can print multiple sensitization discoloration patterned layer 200 on flat substrates 100, wherein one deck can be with color, and other layers are not with color; Or wherein one deck is not with color, other layer band colors; Or some of them layer band color, some other layer is not with color.Each sensitization discoloration patterned layer 200 can be designed to different patterns and color, thus can change the different design and color of display under sunshine or UV-irradiation.
And the mode of printing adopted in the present embodiment is silk-screen or offset printing.When adopting silk-screen and serigraphy, mesh size is selected between 150 order ~ 200 orders.The layer of ink of employing silk-screen is thick, precision is low, coining is little, and offset printing layer of ink is thin, printing figure message reproduction effects is good, and the two respectively has pluses and minuses.After base material 100 prints sensitization discoloration patterned layer 200 by photosensitive-ink, can utilize and carry out dry sensation phototropic pattern 210 from the mode done, dry, UV solidifies, and photosensitive-ink can be diluted with corresponding diluent when printing.
In the step s 120, thermoforming die cutting device can be utilized, the base material 100 being printed with sensitization discoloration pattern is processed various 3D curve form image, these images can be simply U-shaped curved surface image, complicated can be three-dimensional cartoon character, flower and various animals and plants or figure image, and the sensitization discoloration pattern 210 of printing and these vivid corresponding matching, as figure image mixes the clothes of various energy turn colors, the various color that can convert of flower color matching, can turn colors and pattern under sunshine or UV-irradiation, seem very interesting.
In step s 130, which, before being injected into by cladding material 300 on base material 100, first preheating is carried out to base material 100, make base material 100 surface temperature close to the fusing point of cladding material 300.Such base material 100 surface temperature that can make close to the fusing point of cladding material 300, thus obtains optimum adhesion intensity, make cladding material 300 more easily and base material 100 combine.Preheated base material 100 is put into inside mould cavity, or directly inside mould cavity, preheating is carried out to base material 100, after preheated, injection moulding cladding material 300 inside mould cavity, cladding material 300 and base material 100 are bonded together, after cladding material 300 cooling forming, the 3D shape that obtain die-cut with base material 100 hot pressing is corresponding, the sensitization discoloration patterned layer 200 being printed on base material 100 surface can be formed into cladding material 300 surface, thus define the 3D product of needs.
In addition, when selecting base material 100 and cladding material 300, notice that the fusing point of cladding material 300 can not higher than the fusing point of base material 100.If the fusion temperature of cladding material 300 is too low, just cannot melt base material 100 surface, bonding is therebetween then firm not.But fusion temperature is too high, base material 100 will softening transform, and can damage sensitization discoloration patterned layer 200, time serious, cladding material 300 can penetrate base material 100, causes Product processing failure.Therefore, the bonding that the material guarantee of coupling is good is selected.Generally speaking, matching materials should have similar chemical characteristic or the composite parts containing coupling.
Particularly, cladding material 300 can be selected for PC material (makrolon material) and ABS material (acrylonitrile-butadiene-styrene copolymer), ABS material forming temperature is 180-250 DEG C, base material 100 is PC material, PC forming materials temperature is 230-320 DEG C, and its water white transparency is well suited for being used as base material.These materials are all very common, and are easily bonded together.In addition, in addition, also PVC material (polyvinyl chloride can be selected, a kind of thermoplastic resin) as cladding material, PVC material starts to change viscous state at 160 ~ 180 DEG C, translucent, be suitable as injection moulding cladding material, easily PVC material injection moulding covered on PC material.In addition, ABS material can also be used as base material, and use PET material as cladding material.
In practical application, the above-mentioned method processing realizing color-shifting images effect on 3D curved surface can be utilized to obtain electronic product casing or electronic product sheath, and this electronic product casing or electronic product sheath can realize color-shifting images effect, namely have sensitization discoloration performance.More specifically, the electronic product casing in the present embodiment can be cell phone rear cover or panel computer lid or notebook computer casing etc., and electronic product sheath is mobile phone protective cover or tablet computer protective sleeve etc.The printing of sensitization discoloration pattern is worked on electronic product casing or electronic product sheath, increases aesthetic property and the interest of product.
The present invention adopts UV photosensitive-ink to develop the color under sunshine or ultraviolet light or the principle of variable color realizes, UV photosensitive-ink is printed on the flat substrates of plane, again base material is carried out thermoforming, stamping-out makes the face shaping of product, base material is inserted mould to carry out in-mould injection and obtain the 3D product that outer surface is enclosed with sensitization discoloration pattern, this 3D product with sensitization discoloration pattern can manifest or changes colour under sunshine or under ultraviolet light, make product become interesting (to it should be noted that, shape in accompanying drawing is to explain explanation method step, do not represent true shape of the present invention).
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this description is recorded.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be construed as limiting the scope of the patent.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (8)
1. on 3D curved surface, realize a method for color-shifting images effect, it is characterized in that, comprise the steps:
Adopt UV photosensitive-ink printed patterns on flat substrates;
The base material printed is carried out hot-forming, Punching Technology and go out 3D curve form;
Base material after shaping is put into mould and carries out embedding injection moulding, base material bonds cladding material.
2. the method realizing color-shifting images effect on 3D curved surface according to claim 1, is characterized in that, the mode of printing of employing is silk-screen or offset printing.
3. the method realizing color-shifting images effect on 3D curved surface according to claim 2, is characterized in that, this printed patterns can develop the color or/and variable color under sunshine or UV-irradiation.
4. the method realizing color-shifting images effect on 3D curved surface according to claim 3, is characterized in that, described printed patterns has at least one deck.
5. the method realizing color-shifting images effect on 3D curved surface according to claim 1-4 any one, is characterized in that, the fusing point of described cladding material is not higher than the fusing point of base material.
6. the method realizing color-shifting images effect on 3D curved surface according to claim 5, is characterized in that, before being injected into by cladding material on base material, first carries out preheating to base material, makes substrate surface temperature close to the fusing point of cladding material.
7. the method realizing color-shifting images effect on 3D curved surface according to claim 5, is characterized in that, described cladding material is PC material and ABS material, and described base material is PC material.
8. the method realizing color-shifting images effect on 3D curved surface according to claim 1-7 any one processes the product obtained, and it is characterized in that, described product is electronic product casing or electronic product sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410784830.8A CN104527305B (en) | 2014-12-16 | 2014-12-16 | The method and product of color-shifting images effect are realized on 3D curved surfaces |
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| CN201410784830.8A CN104527305B (en) | 2014-12-16 | 2014-12-16 | The method and product of color-shifting images effect are realized on 3D curved surfaces |
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| CN104527305A true CN104527305A (en) | 2015-04-22 |
| CN104527305B CN104527305B (en) | 2018-03-27 |
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| CN106163169A (en) * | 2015-04-24 | 2016-11-23 | 深圳富泰宏精密工业有限公司 | Housing and preparation method thereof, apply the electronic installation of this housing |
| CN108119808A (en) * | 2016-11-29 | 2018-06-05 | 博西华电器（江苏）有限公司 | For the instruction device and household electrical appliance of household electrical appliance |
| CN109243260A (en) * | 2018-10-25 | 2019-01-18 | 浙江胜昔信息科技有限公司 | A kind of smooth change effect material, coloration method, display device and application |
| WO2022127238A1 (en) * | 2020-12-14 | 2022-06-23 | Oppo广东移动通信有限公司 | Housing and manufacturing method therefor, and electronic device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106163169A (en) * | 2015-04-24 | 2016-11-23 | 深圳富泰宏精密工业有限公司 | Housing and preparation method thereof, apply the electronic installation of this housing |
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| CN109243260A (en) * | 2018-10-25 | 2019-01-18 | 浙江胜昔信息科技有限公司 | A kind of smooth change effect material, coloration method, display device and application |
| WO2022127238A1 (en) * | 2020-12-14 | 2022-06-23 | Oppo广东移动通信有限公司 | Housing and manufacturing method therefor, and electronic device |
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| CN104527305B (en) | 2018-03-27 |
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Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. Address before: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. |
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